/*
 * LensKit, an open-source toolkit for recommender systems.
 * Copyright 2014-2017 LensKit contributors (see CONTRIBUTORS.md)
 * Copyright 2010-2014 Regents of the University of Minnesota
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.lenskit.eval.traintest.recommend

import org.junit.Before
import org.junit.Test

import static org.hamcrest.Matchers.*
import static org.junit.Assert.*

public class RecommendEvalTaskTest {
    RecommendEvalTask task

    @Before
    void createTask() {
        task = new RecommendEvalTask()
    }

    @Test
    void testColumns() {
        task.topNMetrics.clear()
        task.addMetric(new TopNMRRMetric())
        assertThat(task.userColumns,
                   containsInAnyOrder("Rank", "RecipRank"))
        assertThat(task.globalColumns,
                   contains("MRR"))
    }

    @Test
    void testColumnsWithPrefix() {
        task.topNMetrics.clear()
        task.labelPrefix = 'Foo'
        task.addMetric(new TopNMRRMetric())
        assertThat(task.userColumns,
                   containsInAnyOrder("Foo.Rank", "Foo.RecipRank"))
        assertThat(task.globalColumns,
                   contains("Foo.MRR"))
    }
}
